“Robust and Non-Robust Analysis of Semivariogram Isotropic in Crime Data by Changing Sill, Case Study: Bandung’s Theft Data”, Internetworking Indonesia, vol. 12, no. 1, pp. 9–15, Jun. 2020, Accessed: Oct. 16, 2025. [Online]. Available: https://internetworkingindonesia.org/index.php/iij/article/view/86